Samsung announced Android 4.3 (Jelly Bean) software update Galaxy S III (GT-I9300). This update is currently available in Ireland’s Vodafone region. From the next week (depends on region) it will be available to other countries. The Android 4.3 update will enable galaxy gear support, improved camera performance, S-Voice Support, new lock screen and features. The user can update to Android 4.3 by Samsung kies and OTA services.

  *  To download and install via OTA service: Settings -> More -> About Device -> Software update -> Update.

  *  To install via Kies connect your device to samsung kies using data cable then download and install the software to the device.

Following are list of improvements in Android 4.3 firmware update for Galaxy S III:

- GALAXY GEAR Support
- TRIM Support (Makes the device much faster)
- ANT+ Support
- Core UI elements updated to the ones on the Galaxy S4 (Galaxy S4′s theme all over)
- New Samsung Keyboard
- GPU drivers have been updated (Higher GPU benchmark scores)
- New Lock screen: Multiple Widgets, improved ripple effect than Android 4.1.2, ability to change clock size and set a personal message
- New Screen modes (From S4): Adapt Display and Professional Photo
- Daydream
- Driving mode
- Actionable notifications
- Move-to-SD-card feature
- New Camera mode : Sound and Shot
- New Additions in Notification Centre
- Completely revamped Settings UI (Tabbed interface – Exactly like the Galaxy S4)
- Implementation of Voice controls (Let’s you control various parts of the phone using voice commands – Galaxy S4 feature)
- New Samsung Apps: Calculator, Clock, Contacts, Gallery, Music
- Full screen Samsung apps
- New S-Voice (from Galaxy S4)